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228116741 = 1971157953
BaseRepresentation
bin11011001100011…
…00100100000101
3120220020112100012
431212030210011
5431344213431
634345200005
75436650246
oct1546144405
9526215305
10228116741
11107847536
1264490005
1338350028
1422420ccd
151506022b
hexd98c905

228116741 has 4 divisors (see below), whose sum is σ = 229274892. Its totient is φ = 226958592.

The previous prime is 228116723. The next prime is 228116753. The reversal of 228116741 is 147611822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181467841 + 46648900 = 13471^2 + 6830^2 .

It is a cyclic number.

It is not a de Polignac number, because 228116741 - 210 = 228115717 is a prime.

It is a super-2 number, since 2×2281167412 = 104074495048922162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228116698 and 228116707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228116041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578780 + ... + 579173.

It is an arithmetic number, because the mean of its divisors is an integer number (57318723).

Almost surely, 2228116741 is an apocalyptic number.

It is an amenable number.

228116741 is a deficient number, since it is larger than the sum of its proper divisors (1158151).

228116741 is a wasteful number, since it uses less digits than its factorization.

228116741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158150.

The product of its digits is 5376, while the sum is 32.

The square root of 228116741 is about 15103.5340566372. The cubic root of 228116741 is about 611.0157233291.

The spelling of 228116741 in words is "two hundred twenty-eight million, one hundred sixteen thousand, seven hundred forty-one".

Divisors: 1 197 1157953 228116741